Bugs item #1971874, was opened at 2008-05-25 06:31
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Category: None
Group: None
Status: Open
Resolution: None
Priority: 5
Private: No
Submitted By: Nobody/Anonymous (nobody)
Assigned to: Nobody/Anonymous (nobody)
Summary: Optimization never stops with Autoopt
Initial Comment:
On a PPC G5 Mac, I have one observation. Minimising (eg propane) using the steepest descent seems to never stop, ie Autoopt runs for ever. Might there perchance be an open implementation of eg the BFGS variable metric method? I ask because steepest descent is notorious for meandering for ever? Or is it roundoff error perchance that is preventing it from stopping? I have not yet found what the quitting criteria might be, or how close the system is to achieving them.
Certainly, in Ghemical, this step rarely takes more than a second or two.
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